7000 series readout system/Repairs

From TekWiki
Revision as of 08:03, 22 January 2022 by Peter (talk | contribs)
Jump to navigation Jump to search

Zeroes in display shrinking after some minutes

Symptom: The digits zero in the display are getting smaller after some minutes
Root cause: Resistor R224 in emitter circuit of Q2240 (zeroes logic) cracked and high value
Solution: Replace resistor
Source: www.amplifier.cd repair report (in German)
Retrieved from "https://w140.com/tekwiki/index.php?title=7000_series_readout_system/Repairs&oldid=71990"